Ive shopped online an Ive had some good experience with ordering using my cards. Ive used visa and mastercard prepaid and check cards. But if you're gonna do a refund online it takes longer for your funds to be back into your account if using an prepaid instead of an check card. Check cards are easier to verify that's why it takes less time to refund.

I use Discover for all my Walmart.com purchases. I've never had a problem using that or my local credit union issued bank card. I don't know anyone who's had issues using a card to order from Walmart.com.

I successfully ordered through Walmart.com and the charge appeared on my credit card (I checked online). I subsequently canceled the order due to finding product in the brick-and-mortar Walmart but the charge shows as pending, meaning it will go away d/t cancellation. I used a Visa credit card with no problems.